<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Environment Variables</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REV="MADE"
HREF="mailto:pgsql-docs@postgresql.org"><LINK
REL="HOME"
TITLE="PostgreSQL 9.1.2 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="PL/Python - Python Procedural Language"
HREF="plpython.html"><LINK
REL="PREVIOUS"
TITLE="Utility Functions"
HREF="plpython-util.html"><LINK
REL="NEXT"
TITLE="Server Programming Interface"
HREF="spi.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="stylesheet.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html; charset=ISO-8859-1"><META
NAME="creation"
CONTENT="2011-12-01T22:07:59"></HEAD
><BODY
CLASS="SECT1"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
><A
HREF="index.html"
>PostgreSQL 9.1.2 Documentation</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
TITLE="Utility Functions"
HREF="plpython-util.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="plpython.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
>Chapter 42. PL/Python - Python Procedural Language</TD
><TD
WIDTH="20%"
ALIGN="right"
VALIGN="top"
><A
TITLE="Server Programming Interface"
HREF="spi.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="PLPYTHON-ENVAR"
>42.10. Environment Variables</A
></H1
><P
>   Some of the environment variables that are accepted by the Python
   interpreter can also be used to affect PL/Python behavior.  They
   would need to be set in the environment of the main PostgreSQL
   server process, for example in a start script.  The available
   environment variables depend on the version of Python; see the
   Python documentation for details.  At the time of this writing, the
   following environment variables have an affect on PL/Python,
   assuming an adequate Python version:
   <P
></P
></P><UL
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONHOME</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONPATH</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONY2K</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONOPTIMIZE</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONDEBUG</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONVERBOSE</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONCASEOK</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONDONTWRITEBYTECODE</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONIOENCODING</TT
></P
></LI
><LI
><P
><TT
CLASS="ENVAR"
>PYTHONUSERBASE</TT
></P
></LI
></UL
><P>

   (It appears to be a Python implementation detail beyond the control
   of PL/Python that some of the environment variables listed on
   the <TT
CLASS="COMMAND"
>python</TT
> man page are only effective in a
   command-line interpreter and not an embedded Python interpreter.)
  </P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="plpython-util.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="spi.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Utility Functions</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="plpython.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Server Programming Interface</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>